Preparation method and application of bionic lithium ion imprinted membrane with catechol/chitosan as interface adhesion layer

The invention relates to a preparation method and application of a bionic lithium ion blotting membrane, in particular to a preparation method and application of a bionic lithium ion blotting membrane with catechol/chitosan as an interface adhesion layer. The invention aims to solve the problem of high cost of the existing bionic ion imprinting adhesion layer. The method comprises the following steps: 1, preparing a PVDF-CA/CS film; and 2, preparing a bionic lithium ion imprinted membrane with CA/CS as an interface adhesion layer. The bionic lithium ion blotting membrane with catechol/chitosan as the interface adhesion layer is used for adsorbing Li < + >. The bionic lithium ion blotting membrane with catechol/chitosan as the interface adhesion layer prepared by the invention has relatively high selective adsorption capacity on lithium ions, and also has the characteristics of strong reproducibility and good chemical stability. According to the invention, the bionic lithium ion imprinted membrane with catecho